Alarm-clock.



V. E. ADLAND.

ALARM CLOCK.

APPLIUATION FILED 1.111,14, 1911.

1,1 1 3,279. f Patented ont. 13, 1914.

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EEEEE Arm/1 Patented 0G13. 13, 1914.

3 SHEETS-.s111111 V. E. ADLAND.

ALARM CLOCK.

APPLICATION FILED .TAN.14, 1911.

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V. E. ADLAND.

ALARM CLOCK.

APPLICATION FILED 1111,14, 1911.

1,1 13,279. Patented Oct. 13, 1914.

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VICTOR E. ADLAND, 0F CHICAGO, ILLINOIS.

ALARM-CLOCK.

Specification of Letters Patent.

Patented Get. 13, 1914.

Application led January 14, 1911. Serial No. 602,584.

To all whom it may conccm:

Be it known that I, VICTOR E. AnLANn, a citizen ot' hc'llnited States, and a resident of the city of Chicago, in the county of Cook and Stale of Illinois, have invented certain new and useful Improvements in Alarm- Clocks; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numbers of reference marked thereon, which form a part of this specification.

In many trades and occupations certain operations require definite times under definite conditions and it sometimes occurs that considerable loss ,or damage may be occasioned by the failure of an attendant to carefully time the operation, and in the cooking of certain foods and in the preparation of certain ingredients used in the arts or otherwise, a certain temperature may be required for a deiinite period and if the heat is applied for a greater period or for a less, the product Will be injured or spoiled thereby. In commercial laundries certain operations are best performed Within a definite time limit and variation from this time limit means unnecessary expense or imperfect Work or both.

The object of this invention is to provide an alarm clock adapted to operate by completing an electrical circuit through one or either of the hands of the clock to affordv a signal.l

It is also an object of the invention to afford a construction in which a movable contact member is adjustable around the dial to afford an electrical contact with one of the hands at any point on the dial and to thereby afford' a signal.

The invention also has for its object. a movable contact member for use inconnection with clocks and by the use of which either hand of the clock may serve to complete a circuit and to aiord a signal.

The invention consists in the matters hereinafter described and more fully pointed out and defined in the appended claim.

In the drawings: Figure 1 is a front elevation of a device embodying my invention. Fig. 2 is a rear elevation thereof With the back plate removed. Fig. 3 is al central longitudinal section with parts in elevation. Fig. 4 is a similar view with the battery cells broken away to show the bell. Fig. 5 is an enlarged fragmentary detail illustrating the operation. Fig. 6 is an enlarged transverse section on line 6--6 of Fig. 5. Fig. 7 is an enlarged detail section taken through the supporting bar for the contact member.

As shown in said drawings: 1, indicates a shell or casing which may be of any suitable ;form, but is shown as cylindric, and which is provided .in its outer end With an insulating sleeve or shell 2. Slidably engaged in said insulating shell is a spring clock 3, of familiar type provided With a relatively short minute hand 4, and a relatively long hour hand 5. the shell 2, of insulating material and connected directly across the face ot the clock, is a bar 7, as shown tubular, and extending through which is a shaft `8, having on its outer end a laterally extended or Winged head 9, and at its inner end integrally ccnnected with a, rod or setting bar 10, which extends radially of the dial of the clock and outside the hands. A spring 11, is provided on the under side of the bar 7, and bears against a collar 12, on said shaft 8, and acts to hold the adjusting bar normally in its adjusted position. Carried on said adjusting bar or rod l0, is a spring pressed contact shoe 13. For this purpose, as shown, a bracket or carrier 14, is apertured to rec'eive the arm therethrough, as shown in Figs. 5 and '6, and provided With a set screw 15, to engage the same in adjusted position on said arm. Pivotally engaged at one end in said carriage is the contact shoe 13, the other end of which is projected inwardly by a light leaf spring or other suitable spring 16, such inward. pressure being just suiiicient to bring the shoe into position for contacting one of the hands lightly. The bar 10, near its extremity isv bent Vinwardly toward the hour hand, thereby permitting the contact shoe when adjusted toward the outer end of said arm, to engage the extremity of the hour hand, if desired.

Within the rear end of the casing is installed one or more dry cells 17, one lead of which is connected with the metallic body of the clock, and, of course, thereby with the hands, the other end lead of Which leads upwardly through the insulation and is connected with the metallic bar 7, on which the adjusting bar or arm 10 is carried. An electrical bell 18, is connected in the circuit so formed. As shown also, a cap or head 19, is provided to close the rear end of said shell, as shown in Figs. l and 2. Legs 20,

Supported upon are provided 011 the shell or casing at the front end thereof to support the casing with the dial in upright position, as is usual.

The operation lis as follows: In adjusting the alarm, the arm 10, is swung to the desired position and the contact shoe adjusted inwardly or outwardly thereon by means of the set screw 15, to aord the contact with the desired hand at the moment said hand arrives at the point on the dial beneath said Contact shoe.v As shown in Fig. 1, the sid-- vjustment is such that an electrical alarm with the shoe properly adjusted thereon to g the point coinciding with that with the minute or hour when it is desired that the alarm be given. If, for example, an operationrequired three minutes for completion, or the completion of one stage orstep in a series, the contact shoe would be adjusted 0n lthe arm for contacting the minute hand and the arm set three minutes in advance of the minute hand, and in the same manner, inasmuch as no part of the mechanism of the clock is affected in any degree by the operation of the alarm, the adjustment of the alarm may be changed from time to' time as required to aford a longer or shorter interval' between signals dependent upon the requirements of the individual case. If, for instance, it were required to give the alarm at intervals of an hour or less than an hour,

the minute hands may be used. If the alarms are to be given at intervals greater than one hour, then the adjustment is for contact with the hour hand and the adjusting arm is positioned on the dial with reference to the minute hand and hour hand to insure the proper interval between alarms.

Of course, details of the construction may be varied. The clock may be of any typeor kind. The device may be applied as readily to a weight clock as to a spring clock, and it isobvious that the particular type of cloc is immaterial. If the clock be such as require winding, it may be removed fro the insulating shell for that purpose or an suitable connections with the winding posts vmay be provided.

Numerous details of the construction may be varied, and I do not purpose limiting myself in the patent for this invention otherwise than necessitated by the prior art.

I claim as my invention:

The combination with a casing, and a clock therein, of an adjustable contact arm supported concentric and parallel with the clock hands and adjacent the plane of rotation thereof, said arm being bent inwardly nea-r its outer end, a contact shoe carried by said arm and shiftable longitudinally thereon, the bent outer portion of said arm carrying said shoe into the path of the minute .hand of said clock, a source of current, an alarm, and a circuit including said source of current, the alarm, the clock hands and said contact arm.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses. l

VICTOR E. ADLAND.

Witnesses:

LAWRENCE RErsTmN, CHARLES W. HILLS, Jr. 

